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原文：Abstract The study proposes a non-contact adjustment method of grinding wheel alignment in ultra-precision grinder by using electric capacitance between a grinding wheel and a reference ball. Cemented carbide with almost no binder is used for die material as molding glass lens. The carbide is one of the most difficult-to-cut materials because of its high hardness. Diamond wheel therefore is generally used for grinding the material under quite light grinding conditions such as less than 1 micrometer of depth of cut. In such ultra-precision grinding, an alignment and a radius of a grinding wheel must be settled precisely to achieve high efficient grinding. In ultra-precision grinding, grinding and measuring are repeated several times, that is, after grinding the work form is measured, and the result is used to correct a grinding program for next grinding. The method proposed in this study is based on an electric capacitance between grinding wheel having conductivity and the reference ball, this means that the method is carried out without any contact between the wheel and the reference. The capacitance is in inverse proportion to the gap, and that can be measured precisely. Using the method, the alignment and the radius of the wheel can be adjusted within short time./ a5 _2 h9 i+ y( D
譯文：（第一句怎么翻譯也不對 ）幾乎沒有硬質合金的粘結劑被用于玻璃鏡片的成型模具材料。由于碳化物是一種高硬度的材料，所以其最難切割。因此，金剛石砂輪磨削一般用于磨削深度較小的情況，如小于1微米的切削深度的物質。在這種超精密磨削中，為了實現高效率的研磨，磨床砂輪校直和轉角半徑必須解決。在超精密磨削，磨削和測量重復幾次，即磨后測量的工作方式，結果是用來糾正下磨削磨削方案。該方法在本研究中是通過一間電容量的磨削砂輪具有導電性和參考球，這意味著，該方法無需進行車輪之間的任何接觸和參考了。電容是成反比的差距，并能精確地測量。使用該方法，路線和車輪的半徑，可在短時間內調整。 |
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發表于 2010-5-25 08:06:53
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